Burner for burning gaseous fuel



(No Model.)

J. F. HEWITT. BURNER FOR BURNING GASEOUS FUEL.

No.5za,os6. Patented July 17, 1894.

' @Finnen/vbo@ @X3i/91400500 UNITED STAT-Es PATENT Oriiflcia,v l

JOSEPIIF. HEWIT'I, OF ALLEGHENY, PENNSYLVANIA.

BURNER FOR BURNING GASEOUS FUEL.

SPECIFICATIONvforming part of Letters Patent No. 523,036, dated July 17,1894.

Application tiled June 21, 1892. Serial No. 4:37151@ (No model-l To allwhom t may concern:

Be it known that I, JOSEPH F. HEWITT, of Allegheny, in the county ofAllegheny and State of Pennsylvania, have invented anew andusefullmprovement in Burners for Burning Gaseous Fuel; and I do herebydeclare the following to be a full, clear, and exact descriptionthereof.

The invention has for its object to provide a simple and efficient gasburner adapted to be easily fitted in and to fire places of usual formand it consists in the construction hereininduction tube these partsbeing of usual for-m and 3 indicates a conduit for mingled air and gasclosed at its ends, except at the point of application of the air andgas mixing devices I and 2.

7 denotes a sheet of asbestus or other refractory material formed toproduce corrugations 7 This sheet is cemented or otherwise fixed in agas-tight manner upon the plate 4 so that the spaces withinthecorrugations 7 in the front plate shall freely communicate with theconduit 3 formed by the transverse corrugation in the back plate.- Theburner consists essentially therefore of two plates secured in contactwith each other and provided with the conduits specified formed bycorrugating said plates and conduit 3. The sheet 7 may be provided withburner openings S disposed lengthwise of the corrugations andparticularly if plate 7 is not of sufficiently open texture to permitthe passage ot gas.

In some cases plate 7 iscovered with a coat of fire proof materialvwhich is suiciently plastic to conform when applied to said corrugatedsheet, and this material is provided with burner openings 8.

Flexible wings or flanges 9 are fixed to the back plate 4 to adapt theburner for application to fire places.

In operation mingled air and gas is introi duced through the conduit 3into each of the the heat and the gas is distributed and burned overpractically the whole surface of the device which fills the fire place.The escape of the products is provided for bya small open ing, the fireplace being otherwise closed, as by the flexible strips, the objectbeing to provide a heater rather than a ventilator, such as is producedby an ordinary gas log, over and about which latter much unconsumed airlpasses up the chimney.

So far as respects an asbestus sheet provided with a molded fire proofmaterial hav ing burner openings its use is not necessarily confined tothe form of burner illustrated.

It is obvious that the flexible flanges provide that the device may betted to fire places of different widths or be adjusted at differentdepths in the same lire place and that the whole construction is suchthat the area of combustion is only limited by that of the fire placeand that ldirect and indirect radiation occur in an area of like extent.

As the pressure of gas will be the greatest in theregion of the lowestburner openings, more gas will be there supplied for combustion than athigher points, but the heat of such combustion will be conveyed upwardlyso as to equalize to some degree the heat of the device and itsradiating effect.

I. do not herein broadly claim flanges whether flexible or otherwise incombination with a burner having a gas receptacle provided with an airand gas mixer for supplying mingled air and gas to the said receptacleand having perforations in practically its entire face, said burner andflanges filling the fire place laterally and fitting the sides of thesame to exclude excess of air, a narrow space being left at the topwhereby a suitable exit for the products of combustion is provided, suchmattei-being set forth and claimed in my pending application, Serial No.484,713.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

l. In a gas burner for fire places the back plate provided with a maingas and air conduit formed by a corrugation therein the front platehaving corrugations inclosing cond uits transverse tothe said mainconduit and provided with burner openings, said front plate being joinedto the face of the back plate substantially as set forth whereby aburner is made of two plates and whereby the entire fireplace may bepractically filled with heat radiating Haines and radiating snr- 5faces.

2. In a gas burner for fire places thebaok plate provided with a maingas and air eonduit formed bya eorrugaton therein the front plate havingeorrugations inelosing conduits 1o transverse to the said main conduitand provided with burner openings, said front plate being joined to theface of the back plate and iiexible flanges attached tothe sides of theplates, all substantially as set forth,whereby the device may be tted toa fire place and superlluous air excluded from the draft.

In testimony whereof I have hereunto set my hand this 20th day of June,A. D. 1892.

J. F. HEWITT. Witnesses:

A. C. JOHNSTON, FRANK II. Ro.

